Pobiti Kamani (Bulgarian: Побити камъни, meaning "The stuck stones") is a rock phenomenon located in Varna Province, Bulgaria. It consists of several groups of natural rock formations on a total area of 70 km². The formations are mainly stone columns between 5 and 7 metres high and from 0.3 to 3 metres thick. The columns do not have solid foundations, but are instead hollow and filled with sand, and look like they are stuck into the surrounding sands, which gives the phenomenon its name.